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<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>js简单对象</title>

<script type="text/javascript">

  //通过javascript的日期对象来得到当前的日期，并输出。 
  var date = new Date();
  var week = new Array("日","一","二","三","四","五","六");
  document.write("今天是"+date.getFullYear()+"年"+(date.getMonth()+1)+"月"+date.getDate()+"日"
  	+"&nbsp"+"星期"+week[date.getDay()]+"</br>");

  
  //成绩是一长窜的字符串不好处理，找规律后分割放到数组里更好操作哦
  var scoreStr = "小明:87;小花:81;小红:97;小天:76;小张:74;小小:94;小西:90;小伍:76;小迪:64;小曼:76";
  var scoreArr = scoreStr.split(";");
  var totalScore = 0;
  for(var j=0;j<scoreArr.length;j++){
  	    var temp = scoreArr[j].split(":");
  		totalScore = parseInt(temp[1])+totalScore;
  }

  //从数组中将成绩撮出来，然后求和取整，并输出。
  document.write("总分为"+totalScore+"</br>"+"平均分为"+Math.round(totalScore/scoreArr.length));


</script>
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<body>
</body>
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